Question

Dada a taxa e o principal, calcule as porcentagens nos seguintes casos:

A) 12% de R$ 600,00.
B) 15% de 80 gramas
C)25% de 48 metros​

Answer 1

A) 600 ------ 100%

x ------ 12%

100x=7200

x=7200÷100

x=72

resposta R$ 72,00 reais.

B) 80 ------ 100%

x ------ 15%

100x=1200

x=1200÷100

x=12

resposta 12 gramas.

C) 48 ------- 100%

x ------- 25

100x=1200

x=1200÷100

x=12

resposta 12 metros.